watchful
-
(a) engaged in or accustomed to close observation
- caught by a couple of alert cops
- alert enough to spot the opportunity when it came
- constantly alert and vigilant, like a sentinel on duty
-
(s) experiencing or accompanied by sleeplessness
- insomniac old people
- insomniac nights
- lay sleepless all night
- "twenty watchful, weary, tedious nights"- Shakespeare